Technibel 38.7104.070, Technical Data & Service Manual

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5-7 Forced Mode
In this mode the system operates (COOLING or HEATING mode – fixed settings) or is switched off by
means of the MODE button of the indoor unit control board. The operation modes can be selected
pressing the button in a cyclic way (OFF
Ö COOL Ö HEAT Ö OFF…). The settings are:
COOLING mode
SET POINT temperature = 25°C
FAN SPEED = HIGH
HEATING mode
SET POINT temperature = 21°C
FAN SPEED = HIGH
5-8 Protection operations in Cool and Dry Mode
8.1 Freeze-up
This protection prevents ice formation on the indoor coil heat exchanger. The protection is activated by
the indoor coil temperature (ICT sensor) and only after 6 minutes of compressor operation. This
protection acts in 2 levels:
LEVEL 1
INDOOR FAN SPEED: ANY (as selected from remote controller)
COMPRESSOR: ON
OUTDOOR FAN: cycling (30 seconds ON
B 30 seconds OFF).
LEVEL 2
INDOOR FAN SPEED: ANY (as selected from remote controller)
COMPRESSOR: OFF for at least 6 minutes and until ICT
≥ 8°C
OUTDOOR FAN: OFF for at least 6 minutes and until ICT ≥ 8°C
The system exit this protection routine when ICT temperature rises above 8°C.
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